Cholera Toxins. Produced by Vibrio cholerae, cholera toxin (CT) is a multimeric enterotoxin that transfers ADP-ribose to a G protein, locking adenylate cyclase in an 'on' position.
echinoderm. n. 1. (Animals) any of the marine invertebrate animals constituting the phylum Echinodermata, characterized by tube feet, a calcite body-covering (test), and a five-part symmetrical body. The group includes the starfish, sea urchins, and sea cucumbers.ny of various invertebrate sea animals having a hard spiny outer covering, an internal skeleton, and a radially symmetrical body. Starfish, sea urchins, and sea cucumbers are echinoderms.
Name: Echinoderm True/False Indicate whether the sentence or statement is true or false. TF 1. Chordates and echinoderms have a common ancestor. TF 2. None of the echinoderms living in the oceans today is sessile. TF 3. In addition to radial symmetry, echinoderms have a water-vascular system. TF 4. â¦ Continue reading Echinoderm